Windows batch to add/replace entry in hosts file

Question

I read this topic First step which was usefull to begin with. I can add several lines into my hosts file.

I am now trying, without success, to search and replace a string with regular expression. For exemple, if my host file contains "SOMEIP website.com" I would like to modify this line to obtain "NEWIP website.com".

I can find if a line contains "website.com", I currently don't know (if possible) how to get that line and replace the IP address via a regular expression pattern.

%windir%\system32\FIND /C /I "website.com" %hostpath% >nul

IF %ERRORLEVEL% NEQ 0 ECHO %NEWLINE%^%server%   website.com>>%hostpath%

I'm lost so thank you for your answers :)

HOSTS requires admin privs to change so you'll need to run your batch file with elevated permissions. — foxidrive, Aug 29 '13 at 00:18
I will look at 'takeown' and 'grant' to see if it may help with it. Thank you for the iead. — user2381807, Aug 29 '13 at 08:42

score 0 · Accepted Answer · edited May 23 '17 at 10:32

0

See https://stackoverflow.com/a/16735079/891976 for repl.bat by dbenham which supports regular expression search and replace.

type "HOSTS" | repl "\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\b website.com" "NEWIP website.com" m >"HOSTS.new"
move /y HOSTS.new HOSTS

Repl.bat: http://www.dostips.com/forum/viewtopic.php?f=3&t=3855

edited May 23 '17 at 10:32

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answered Aug 28 '13 at 13:56

David Ruhmann

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That was very helpful, it did exactly what i needed :) – user2381807 Aug 29 '13 at 08:29

score 0 · Answer 2 · answered Aug 28 '13 at 14:13

example with sed for Windows:

sed -ri.bak "s/(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])\.(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])\.(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])\.(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9]) website.com/NewIP website.com/ig" hosts

sed makes a backup copy hosts.bak.

Windows batch to add/replace entry in hosts file

2 Answers2

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